LENOVO PHONE SECRET ALL USSD CODES

 













Enter into Factory Mode: *#987#
Restore Factory Settings: *#987*99#
Check Software Version: *#900# OR *#800#
Default User Codes: 1122, 3344, 1234, 5678
Change LCD Contrast: *#369#
To Enable COM Port: *#110*01# -> Device -> Set UART -> PS Config -> UART1/115200
Codes to Change Screen Language:

 I Just Know About Karbonn K46 Dual Sim Qwerty Key Pad Mobile Factory Mode Is *#166*#
Auto Test Is *#187#.
Rms Setting

• *#0000# + Send : Set Default Language
• *#0007# + Send : Set Language to Russian
• *#0033# + Send : Set Language to French
• *#0034# + Send : Set Language to Spanish
• *#0039# + Send : Set Language to Italian
• *#0044# + Send : Set Language to English
• *#0049# + Send : Set Language to German
• *#0066# + Send : Set Language to Thai
• *#0084# + Send : Set Language to Vietnamese
• *#0966# + Send : Set Language to Arabic

Code *#002# for FULL factory reset - cured my phone from reboots and other nasty glitches! :)
Here is the list of working codes for cheap (<$25 at AliExpress) dual-sim noname phones with camera and bluetooth - they often have Coolsand rda8851a / Coolsand CT8851A CPU. Secret codes should be entered at the home screen of phone:
*#002# - FULL FACTORY RESET
*#87# or *#88# - Phone Test
*#06# - show IMEI of phone
*#8375# or *#8376# - Software/Hardware Info
*#3641# - Engineer mode. If you are changing hidden settings, do it wise.
*#3696# - Firmware USB update mode. Don't install wrong firmware!











You can also give a try to following codes shared by our reader "More_C30mini":
*#002# - Full Factory Reset
*#87# or *#88# - Phone Test
*#06# - Shows IMEI of Mobile Phone
*#8375# or *#8376# - Software/Hardware Info
*#3641# - Engineer Mode (If you change hidden settings, do it wise)
*#3696# - Firmware USB Update Mode (Don't install wrong firmware)
Also Check: